Weighing scale



FIG. 1 is a left side elevational view of a weighing scale showing my new design;

FIG. 2 is a right side elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a front elevational view;

FIG. 5 is a top plan view; and

FIG. 6 is a perspective view thereof.

FIG. 6 has been drawn on an enlarged scale with respect to FIGS. 1-5. 

The ornamental design for a weighing scale, as shown and described. 